<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>form空白</title>
</head>
<body>
<form action="success.html" method="post">
    <input type="hidden">
    用户名：<input type="text" name="username"><br>
    密码：<input type="password" name="password"><br>
    性别：<input type="radio" name="sex" value="male">男<input type="radio" name="sex" value="female">女<br>
    爱好：<input type="checkbox" name="hobby" value="抽烟">抽烟
        <input type="checkbox" name="hobby" value="喝酒">喝酒
        <input type="checkbox" name="hobby" value="烫头">烫头<br>
    上传头像：<input type="file" name="photo"><br>
    专业：
    <select name="major">
        <option value="1">Java</option>
        <option value="2">python</option>
        <option value="3">JavaScript</option>
    </select><br>
    自我介绍：<textarea name="zwjs" cols="80" rows="10"></textarea><br>
    <input type="submit" value="确定">
    <input type="reset" value="取消">
    <input type="button" value="你好">
    <button>hello</button>
</form>
</body>
</html>